I also live in an RV. My last quilt (a Queen size) was done on my small dining room table. When it was time to sandwich it I found the RV Park we are staying at has a blank wall on their big tool shed. I used push-pins to hang the backing, spray basted that, then hung the batting. It smoothed out beautifully ! Sprayed that and hung the top with more push-pins...it was so easy to quilt without the worry of pinning. Where there's a will...